James w



(No Model.)

J. W. HILTON.

MACHINE FOR PULVERIZING ORES, &0.

Patented July 28, 1885.

II III WITNESSES O ATTORNEYS.

N FUERS, PhMWLilhngmphur, Washinglon, D. (l

NITE

ATENT MACHINEFOR PULVERIZING ORES, 80C.

.J'PEGIFICATION forming part of Letters Patent No. 323,147. dated July 28, 1885.

' Application tiled October a, 1884. (No model.)

To all whom it may concern:

Be it known that I, JAMEs W. HILTON, of Brooklyn, in the county of Kings and State of New York, have invented certain new and useful Improvements in Machines for Pulverizing Ores and other Materials, of which. the following is a full, clear, and exact description.

This invention pertains to improvements in machines for pulverizing ores and other materials; and it consists of the combination of parts and their construction, substantially as hereinafter fully set forth and claimed.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is avertical section of the machine in a plane at right angles to the shaft. Fig. 2- is a section on line a: x of Fig. 1, and Fig. 3 shows a modification.

The case of the machine consists of a cylindrical shellfa, and side plates, b b, which are attached by means of bolts passing through flanges formed on the parts, and, as shown, the plates b are attached or formed with the supporting-base c. d d are side screens attached to interior flanges of the shell (1, so that they set off from the sides I) to allow escape of line material. At Z-in the top of the shell is the feed-inlet, and ate is the outlet from the case for the pulverized material.

A horizontal shaft, f, supported in standards 9, passes through the center of the case,

and carries a hub, h, that is provided with arms 1', preferably four in number.

7c is are the stamps or grinders, mortised to set freely on the arms t' of the hub. In form the grinders are segments of cylinders; but they may be of any suitable shape, and they may be made of steel or other suitable material in solid form, or ashoe maybe applied on the wearing portion. with steel plates to form the wearing-surface.

In operation the grinders are moved out by centrifugal action and gravity against the sides and lower part of the shell a, and thereby crush and pulverize the material. The machine is adapted for either dry or wet crushing. When used for dry crushing, there' may be fans on the hub to create a current of air to carry the fine material through the screens.

In the modification showr inFig. 3 the arm or hub is mortised and the grinder 7c is made with a tongue entering the mortise. I do not limit myself in that respect.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- The combination, in apulverizing-machine, of hub 72, having arms t, grinders is, carried by the arms and sliding thereon, screens d,and the case consisting of shell a and plates 12, substantially as shown and described.

JAMES W. .HILTON.

\Vitnesses:

GEO. D. WALKER, O. SEDGWIcK.

The case is to be lined 

